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Proceedings Paper

Thermal wave imaging of defects in fiber-reinforced composites
Author(s): Lawrence D. Favro; Xiaoyan Han; Robert L. Thomas
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Paper Abstract

The principles of thermal wave imaging for NDE are described. The technique utilizes high-power photographic flash lamps for pulse-heating of the surface of the composite. The cooling of the surface is monitored by means of an IR video camera. Disbonds, delaminations, and inclusions are seen in the resultant thermal wave images, with deeper features appearing systematically at later times. Examples of the application of thermal wave imaging to nondestructive evaluation of boron fiber composite reinforcement patches, and graphite-fiber aerospace composite materials are described.

Paper Details

Date Published: 31 March 1998
PDF: 6 pages
Proc. SPIE 3397, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware II, (31 March 1998); doi: 10.1117/12.305043
Show Author Affiliations
Lawrence D. Favro, Wayne State Univ. (United States)
Xiaoyan Han, Wayne State Univ. (United States)
Robert L. Thomas, Wayne State Univ. (United States)

Published in SPIE Proceedings Vol. 3397:
Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware II
Glenn A. Geithman; Gary E. Georgeson, Editor(s)

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